Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1937)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of North American Batrachia and Reptilia with a systematic list of the higher groups and an essay on geographical distribution, based on the specimens contained in the U. S. National Museum - Cope, E. D. (Edward Drinker), 1840 -1897 (G.P.O, 1875)

A check list of North American birds - Coues, Elliott, 1842 -1899 (F.W. Putnam, 1879)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1882)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (The Union, 1889)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1874)

A check list of the genera and species of Mallophaga - Clay, Theresa (BM(NH), 1952)

A checklist of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1873)

A classification of vertebrata, recent and extinct - Gadow, Hans, 1855 -1928 (Black, 1898)

A classified index and synopsis of The animal kingdom arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for Whittaker and Co, 1835)

The code of nomenclature and check-list of North American birds : adopted by the American Ornithologists' Union : being the report of the Committee of the Union on Classification and Nomenclature - American Ornithologists' Union. Committee on Classification; Nomenclature. (1886)

Coleoptera Atlantidum, being an enumeration of the coleopterous insects of the Madeiras, Salvages, and Canaries - Wollaston, Thomas Vernon, 1822 -1878 (Van Voorst, 1865)

Coleoptera maderensia - Wollaston, Thomas Vernon, 1822 -1878 (R. Taylor and W. Francis, 1854)

Coleoptera Neerlandica : de schildvleugelige insecten van Nederland en het aangrenzend gebied - Everts, Edouard Jacques Guillaume, 1849 -1932 (Nijhoff, 1898)

Coleoptera Neerlandica : de schildvleugelige insecten van Nederland en het aangrenzend gebied - Everts, Edouard Jacques Guillaume, 1849 -1932 (Nijhoff, 1901)

Coleoptera Neerlandica : de schildvleugelige insecten van Nederland en het aangrenzend gebied - Everts, Edouard Jacques Guillaume, 1849 -1932 (Nijhoff, 1922)

The Coleoptera of Kansas and eastern New Mexico - LeConte, John L. (John Lawrence), 1825 -1883 (Smithsonian Institution, 1859)

The Coleoptera of the British islands : a descriptive account of the families, genera, and species indigenous to Great Britain and Ireland, with notes as to localities, habitats, etc - Donisthorpe, Horace St. John Kelly (L. Reeve & co, 1888)

The Coleoptera of the British islands : a descriptive account of the families, genera, and species indigenous to Great Britain and Ireland, with notes as to localities, habitats, etc - Donisthorpe, Horace St. John Kelly (L. Reeve & co, 1891)

The coleopterist's manual ... - Hope, F. W. (Frederick William), 1797 -1862 (H. G. Bohn [etc.], 1840)

Coleopterological notices - Casey, Thos. L. (Thomas Lincoln), 1857 -1925 (New York Academy of Sciences, 1895)

Coleopterologische Hefte - Harold, Edgar von, 1830 -1886 (Carl Merhoff's Verlag, 1872)

[Collected articles from The Ibis on the ornithology of Central America] - Salvin, Osbert, 1835 -1898 ([Blackwell Scientific], 1859)

The collected scientific papers of the late Alfred Henry Garrod, M.A., F.R.S - Forbes, W. A. (William Alexander), 1855 -1883 (R.H. Porter, 1881)

The collected scientific papers of the late William Alexander Forbes - Beddard, Frank E. (Frank Evers), 1858 -1925 (R.H. Porter, 1885)

Compléments de Buffon - Buffon, Georges Louis Leclerc, comte de, 1707 -1788 (P. Pourrat Frères, 1838)

The complete writings of Thomas Say on the entomology of North America - Ord, George, 1781 -1866 (1883)

The complete writings of Thomas Say on the entomology of North America - LeConte, John L. (John Lawrence), 1825 -1883 (A. E. Foote, 1891)

The complete writings of Thomas Say on the entomology of North America - Ord, George, 1781 -1866 (Baillière brothers, 1859)

Comptes rendus hebdomadaires des séances et mémoires de la Société de biologie - Société de biologie (Paris, France) (G. Masson, 1907)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1850)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1856)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1857)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1907)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1905)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

Conspectus generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (Apud E.J. Brill, 1850)

Conspectus generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (Apud E.J. Brill, 1865)

Conspectus Psittacorum : cum specierum definitionibus, novarum descriptionibus, synonymis et circa patriam singularum naturalem adversariis, adjecto indice museorum, ubi earum artificiosae exuviae servantur - Kuhl, Heinrich, 1797 -1821 (s.n, 1820)

Conspectus Psittacorum : systematische Uebersicht aller bekannten Papageienarten - Reichenow, Anton, 1847 -1941 (A. Reichenow, 1882)

Contents and index to volume 12, numbers 1 to 19, Zoological series - Field Museum of Natural History. (Field Museum of Natural History, 1929)

Contribucion á la ornitologia cubana - Gundlach, Johannes Christoph, 1810 -1896 (Imp. "La Antilla" de N. Cacho-Negrete, 1876)